There is an urban legend about a secret dungeon in LINK VRAINS. It's packed full with dangerous traps. And what waits at the other end is...
On the field are two 
monsters and two set cards.
Auf dem Spielfeld habe ich zwei
Monster und zwei verdeckte Karten.
En el campo hay dos monstruos
y dos cartas boca abajo.
No campo tem dois monstros e
duas cartas viradas para baixo.